What are some weaknesses of the Articles of Confederation that caused the need for a new and stronger federal government that the framers outlined in the Constitution? Select all that apply.

A. how to resolve disputes between states over land
B. differences in opinions on how to establish a federal educational system
C. confusion over different state currency
D. how to set up reserved land for Native Americans

E. lack of a strong executive branch

F. lack of a federal court system
A, C, E, F